21000612284

素因数分解:

$2^2\times {\mathrm{15907}}^1\times {\mathrm{330053}}^1$

素因数の和:345964

約数の個数: 12

約数和(自身を含む): 36753493224

約数和(自身を除く): 15752880940

約数列:

[1, 2, 4, 15907, 31814, 63628, 330053, 660106, 1320212, 5250153071, 10500306142, 21000612284]

約数ペア:

[(1, 21000612284), (2, 10500306142), (4, 5250153071), (15907, 1320212), (31814, 660106), (63628, 330053)]